Bicycle attachment.



No. 650,082. Patented May 22, I900.

A. A. NEUBAUER. BICYCLE ATTACHMENT. (Application filed Sept. 6, 1899.) (No Model.) 2 Sheets$heef I.

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No. 650,082. Patented May 22, I900.

A. A. NEUBAUEH. BICYCLE ATTACHMENT;

(Application filed Sept. 6, 1899,)-

2 Sheets-Sheet 2.

(No Model.)

SHI wu m: NORRIS Pnzns co. mamuwa, WASHINUTON. 0v 0.

. UNITED STATES PATENT OFFICE.

.ADOLPII annunnuna, or CAMDEN, NEW JERSEY.

BICYCLE ATTACHMENT.

SPECIFIGATION forming part of Letters :Patent No. 650,082, dated May 22, 1900. Application filed September 6,1899. Serial No. 729,587. (No model.)

To all whom it may concern: 7

Be it known that I, ADOLPH A. NEUBAUER, a citizen of the United States, residing at (Jamden,in the county of Camden and State of New Jersey, have invented a-new and useful Improvement in Bicycle-Seats, of which the following is a specification.

The invention is for preventing the stealing of bicycles by riding them away. The seat is provided with one or more upwardly-projecting needles or pricks, which reciprocate through one or both sides of the seat-top by means of mechanism located beneath in such manner that the rider can raise them when the bicycle is not in use and depress them when in use.

On reference to the accompanying sheets of drawings, making part of this specification, Figure 1 is a-bottom View of the bicyle-seat and its mechanism. Fig. 2 is a side view of the bicycle-seat, showing a side view of one of the depending hangers and the handle of the transverse shaft. Fig. 3 is an end view of the bicycle-seat and its mechanism. Fig. 4 is an end View, partly sectioned, through the line 4 4, Fig. 3. Fig. 5 is an inside end View, partly sectioned, through the line 5 5, Fig. 3. Fig. 6 is an inside end view, partly sectioned, through the line 6 6, Fig. 3; and Fig. 7 is an outside end view, partly sectioned, through the line 7 7, Fig. 3.

Similar letters refer to similar parts in the several views.

Depending from the bottom of the seat A are the wide-apart hangers B B, in which is journaled a transverse crank-shaft 0, provided at its outer end'with a handle D. Fixed to the flanges a of the hangers B B by boltsE is a spring F, which extends transversely at b and bends around said bolts E, then passes horizontally in the parallel parts 0 d, and finally is turned inwardly at E, so that the extreme endsfg' embrace 21 depending bolt G of the seat A and are fixed on a chair H bya nut h and washer i of said bolt.

On the transverse crank-shaft 0, Within the hangers B B, are cranks I I, one or more, in engagement with the ends of a resilient wire J, which is formed into a suitable spring by bending it centrally in a hook K for embracing the transverse part b of the seat-spring F. The double lengths j 7c are then extended horizontally and wound around the shaft O in opposite directions, their ends Zbeing fixed 'in openings m, formed in the cranks I I, to

hangers B. The end of said detent engages with the loose end of a spring 19 of the hanger B, which is so arranged as to force that end of the detent into the cut-away or reduced part 0 of the handle-hub n. Pivoted to the opposite .hanger B is a detent N, which is operated byahandle or knob 0, extending through an are or slot q of said hanger, so that its loose end can be moved until it rests on. the top of its respective crank I, and prevents the elevation of the cranks z 11 by stopping the rotation of the crank-shaft C, and of consequence the rais ing of the needles or. pricks L through the top 'of the bicycle-seat A.

The operation is as follows: The rider of the bicycle turns the crank-shaft C by its handle D until the end of the detent M takes into and is securely held in the slot or cutaway part 0 of the handle-hub n by the spring 1', and the knob O of the opposite hanger B is moved in its slot q until the end of the detent N is above its respective crank I, by which the needles or pricks L are held and fixed beyond the possibility of accidental .raising through the surface of the seat A.

When the rider dismounts, he turns the detents M N until their combined support is removed from the axle G and cranks I I, and the spring J is free to act by turning said axle O and cranks I I and throwing up the needles or pricks L until their ends project upwardly through the top of the bicycle seat, and thus prevent any one from mounting the bicycle without serious injury or manipulating the detents for lowering the nee dles or pricks without detection. To the seat A, near its top or surface, is abutton P of a vertical shaft Q, which isheld in a raised position by a spring 1'. When depressed, its

bottom end .9 engages with the detent M and moves it sufficiently to break the engage-E ment between it and, the slot 0 of the-hub of the handle D.

Ic1aim s A 1. The combination with a bicycle-seat of depending hangers, transverse crank-shat t of. dependinghangers,actuating spring'ofcrankshaft,cranks at opposite ends of crank-shaft, and upwardly-projecting needles of cranks.

2. The combination with a bicycle-seat of depending hangers, transverse crank-shaft of dependin ghan g ers,aetuati-ng-sprin g of crank shaft, cranks at opposite ends of crank-shaft, upwardly-projecting needles of cranks, anda detent of the crank-shaft handle for holding theineed'les in alowered position. t The combination with a bicycle-seat of depehdingha'ngers, transverse crank-shaft 'of"depend ing: hangers, actuating-spring of crankshaft, cranks at both ends of crank- 

